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Title: Purge water management system

A purge water management system is described for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous wastemore » under the Resource Conservation and Recovery Act is eliminated.« less
Inventors:
;
Issue Date:
OSTI Identifier:
463574
Assignee:
US Dept. of Energy, Washington, DC (United States) SRS; SCA: 540220; 540230; PA: EDB-97:062949; SN: 97001764392
Patent Number(s):
PATENTS-US-A8398537
Application Number:
ON: DE97003870; PAN: 8-398,537; TRN: AHC29709%%11
Contract Number:
AC09-89SR18035
Resource Relation:
Other Information: PBD: 1995
Research Org:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; WATER POLLUTION MONITORS; WASTE MANAGEMENT; WASTE WATER; WATER WELLS; SAMPLING; GROUND WATER; CLEANING; DESIGN; FLUID WITHDRAWAL; UNDERGROUND DISPOSAL; HAZARDOUS MATERIALS; RADIOACTIVE MATERIALS; MATERIALS HANDLING EQUIPMENT